David A. Snowdon(1952 – ) is an epidemiologist and professor of neurology at the Sanders-Brown Center on Aging at the University of Kentucky. His research interests include antioxidants and aging, and the neuropathology of Alzheimer's disease, especially predictive factors in early life and the role of brain infarction.
He is the director of the Nun Study, a longitudinal study of aging and Alzheimer's disease which is following 678 members of the School Sisters of Notre Dame aged over 75 years.
Courtesy of Wikipedia.